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Culture Tube
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Culture Tube

The Culture Tube with Screw Thread and Teflon Liner provides a reliable leakproof solution for cell culturing, sample incubation, and chemical storage. Manufactured from ASTM E-438 Type-1 Class A, Boro 3.3 glass, this round-bottom culture tube exhibits high resistance to thermal shock and chemical attack. Each tube is equipped with a durable polypropylene (PP) screw cap featuring an integrated Teflon (PTFE) liner, forming a leakproof seal that prevents evaporation, sample loss, and cross-contamination during incubation or transport. Designed for microbiological culture growth, tissue culture, sample storage, and chemical reactions, it performs reliably across biological, clinical, and industrial testing environments. Suitable for biotechnology, pharmaceutical, clinical diagnostics, environmental analysis, and educational research industries. Supplied by Edulabs.

Storage Instructions

  • Store culture tubes in dedicated tube racks, wooden blocks, or original grid packaging to prevent glass-to-glass impact.

  • Keep in a clean, dry, temperature-controlled environment away from direct exposure to corrosive vapors.

  • Store screw caps in a separate container or loosely fitted onto tubes if not in immediate use.

  • Ensure storage areas are free from high ambient vibrations that could lead to glass damage.

  • Stacking unboxed culture tubes loosely should be avoided to prevent chipping or scratching.

  • Keep Teflon liners clean and inspected to maintain proper sealing efficiency prior to use.

Safety Information

  • Inspect culture tubes for cracks, chips, or thread damage before loading samples or autoclaving.

  • Wear appropriate personal protective equipment including laboratory coats, heat-resistant gloves, and safety goggles.

  • Loosen screw caps prior to autoclaving or heating to prevent internal pressure buildup and potential tube rupture.

  • Allow tubes to cool gradually post-autoclaving; do not place hot glass culture tubes directly on cold, wet surfaces.

  • Ensure the PP cap and Teflon liner are chemically compatible with stored reagents before long-term exposure.

  • Handle biological cultures using sterile techniques and dispose of biohazardous culture tubes in designated sharps/autoclave containers.

  • Avoid overtightening screw caps to prevent thread damage or cracking of the polypropylene cap.

Categories: ,

The Culture Tube manufactured by Edulabs is a high-performance laboratory container engineered for biological incubation, sample containment, and general laboratory storage. Featuring a round bottom and precision screw thread finish, this tube provides a dependable vessel for microbiological culture media, tissue samples, and chemical reagents.

Constructed from ASTM E-438 Type-1 Class A, Boro 3.3 borosilicate glass, the culture tube offers exceptional chemical resistance against hydrolytic attack, acidic solutions, and neutral reagents. Its heavy-wall design and uniform glass distribution provide mechanical strength and high resistance to thermal shock, making it fully suitable for repeated sterilization cycles in laboratory autoclaves.

Each culture tube comes supplied with a polypropylene (PP) screw cap fitted with an inert Teflon (PTFE) liner. The Teflon liner creates a secure, leakproof seal that protects sensitive samples from contamination, atmospheric moisture, and volatilization. Polypropylene caps provide chemical resistance and ergonomic grip during capping and uncapping operations.

The round-bottom geometry ensures uniform heat distribution during thermal processing and facilitates easy mixing and sediment resuspension during vortexing or centrifugation. Available in a wide selection of outer diameter and height configurations, these culture tubes accommodate diverse working volumes ranging from 5 ml up to 150 ml.

Whether utilized for bacterial growth, cell culture media storage, environmental sample collection, or chemical stability testing, this culture tube delivers consistent performance. Edulabs supplies these culture tubes in bulk pack quantities to meet the operational demands of educational, medical, research, and industrial laboratory facilities.

Key Features

  • Made from high-quality ASTM E-438 Type-1 Class A, Boro 3.3 borosilicate glass.

  • Round bottom design for optimal thermal distribution and easy sample swirling.

  • Precision screw thread finish paired with a leakproof polypropylene (PP) screw cap.

  • Integrated Teflon (PTFE) cap liner providing high chemical inertness and seal integrity.

  • Excellent resistance to thermal shock and repeated autoclave sterilization.

  • High hydrolytic and chemical durability against aggressive reagents.

  • Uniform wall thickness for high mechanical strength.

  • Broad range of dimensions from 12 x 75 mm up to 38 x 200 mm.

  • Suitable for both liquid and solid media cell culturing applications.

  • Supplied in convenient bulk packs of 50 or 100 units.

Technical Specifications

Parameter Specification
Product Name Culture Tube
Material ASTM E-438 Type-1 Class A, Boro 3.3 Glass / PP Cap / Teflon (PTFE) Liner
Standard ASTM E-438 Type-1 Class A
Cap / Closure Polypropylene (PP) Screw Cap with Teflon (PTFE) Liner
Seal Integrity Leakproof
Construction Round bottom, screw thread top, uniform wall thickness
Chemical Resistance Superior resistance to acids, alkalis, and organic solvents
Thermal Resistance Autoclavable and high thermal shock resistance
Application Microbiological culturing, tissue culture, and sample storage
Grade Laboratory Grade

Available Models

Item Code O.D. x Height(mm) Capacity Pack of
SL.2201.01 12 X 100 MM 5 ML 100
SL.2201.02 12 X 75 MM 5 ML 100
SL.2201.03 16 X 100 MM 10 ML 100
SL.2201.04 16 X 125 MM 15 ML 100
SL.2201.05 16 X 160 MM 20 ML 100
SL.2201.06 18 X 180 MM 30 ML 100
SL.2201.07 20 X 100 MM 15 ML 100
SL.2201.08 20 X 200 MM 40 ML 100
SL.2201.09 22 X 200 MM 45 ML 100
SL.2201.10 25 X 100 MM 25 ML 100
SL.2201.11 25 X 150 MM 50 ML 100
SL.2201.12 25 X 200 MM 60 ML 50
SL.2201.13 38 X 200 MM 150 ML 50
SL.2201.14 32 X 200 MM 100 ML 50

Applications

  • Microbiological culture propagation and slant preparation.

  • Cell culture incubation and media storage in biotechnology.

  • Chemical sample containment and reagent storage in testing labs.

  • Environmental water, soil, and wastewater sample collection.

  • Pharmaceutical formulation stability testing and sample retention.

  • Clinical blood, serum, and biological fluid containment.

  • Extraction and centrifugation routines in analytical workflows.

  • Food and beverage microbial contamination testing.

  • Academic laboratory experiments in biology, microbiology, and chemistry.

  • Customized laboratory testing and assay incubation routines.

Note

Edulabs also offers a comprehensive range of laboratory glassware, laboratory plasticware, laboratory chemicals, laboratory instruments, laboratory equipment, scientific apparatus, educational laboratory equipment, and customized laboratory solutions for educational institutions, research laboratories, pharmaceutical industries, healthcare facilities, biotechnology laboratories, environmental testing laboratories, food and beverage laboratories, and industrial quality control laboratories. Contact Edulabs for bulk orders and OEM requirements.

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